T-DMB 시스템에서 궤환간섭 제거기를 가지는 등화형 OCR
Equalization OCR with Feedback Interference Canceller for T-DMB System
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참고문헌
키워드
초록
본 논문에서는 T-DMB 시스템의 단일 주파수 망 구성을 위해 궤환신호 제거기를 가지는 등화형 OCR(E-OCR: Equalization On-Channel Repeater)을 제안한다. 제안된 OCR은 송/수신 안테나의 충분치 못한 분리도로 인해 야 기된 궤환신호를 궤환간섭 제거기를 통해 제거하여 송신출력을 높일 뿐만 아니라 등화기를 통하여 송신기와 중계기간 다중경로 신호로 인한 왜곡을 제거함으로써 우수한 출력신호 품질을 보장한다. 또한 본 논문에서는 전산 실험을 통해 제안된 OCR의 성능을 살펴보고 실험실 테스트를 통해 실제구현된 OCR의 성능을 검증한다.
Abstract
In this paper, we propose an equalization On-Channel Repeater (OCR) with Feedback Interference Canceller (FIC) for the Terrestrial Digital Multimedia Broadcasting (T-DMB) signals in Single Frequency Networks (SFN). The proposed OCR does not have only high output power by cancelling feedback signals caused by insufficient antenna isolation through the FIC, but also shows better quality of output signals than the conventional OCR by removing multipath signals existing between the main transmitter and the OCR through an equalizer. In addition, computer simulations and laboratory tests results are provided to figure out performance of the proposed OCR.
참고문헌 (13)
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